| Description | Date | Identifier | |
| Letter from Graham-Paige International Corporation regarding the shipment of a supercharger and carburetor. | 13th Jul 1934 | Box 126 \ 1 scan0137 | |
| Invoice from Graham-Paige Motors Corporation for a carburettor and other parts. | 17th Jul 1934 | Box 126 \ 1 scan0138 | |
| Invoice from Graham-Paige Motors Corporation for a carburettor and other parts. | 17th Jul 1934 | Box 126 \ 1 scan0139 | |
| Invoice from Graham-Paige Motors Corporation for car parts. | 17th Jul 1934 | Box 126 \ 1 scan0140 | |
| Invoice from Graham-Paige Motors Corporation for a carburettor and other parts. | 17th Jul 1934 | Box 126 \ 1 scan0141 | |
| Request to rebuild and fit a Graham Supercharger, distributor head, and dynamo after inspection. | 18th Jul 1934 | Box 126 \ 1 scan0142 | |
| Purchase of a second Graham Blower supercharger to be fitted to a Bentley. | 20th Jul 1934 | Box 126 \ 1 scan0143 | |
| Letter to F.F. Kishline of Graham-Paige Motors Corporation providing feedback on a car's performance. | 20th Jul 1934 | Box 126 \ 1 scan0144 | |
| Experimental department report on the Graham Car Supercharger. | 23th Jul 1934 | Box 126 \ 1 scan0145 | |
| Description and test report for a Graham Car supercharger. | 23th Jul 1934 | Box 126 \ 1 scan0146 | |
| Analysis of supercharger performance without a diffuser, covering boost, efficiency, and engine power effects. | 25th Jul 1934 | Box 126 \ 1 scan0147 | |
| Test report detailing blower efficiency improvements and observations on running characteristics like noise, balance, and thrust. | 23th Jul 1934 | Box 126 \ 1 scan0148 | |
| Performance analysis and specifications of a Graham blower, including potential adaptation for a Bentley engine. | 23th Jul 1934 | Box 126 \ 1 scan0149 | |
| Performance characteristics graph for a Graham car supercharger at 1000 engine RPM. | 15th Jun 1934 | Box 126 \ 1 scan0150 | |
| Performance characteristics graph for a Graham Car Supercharger with carburetter less air cleaner at 2000 engine RPM. | 15th Jun 1934 | Box 126 \ 1 scan0151 | |
| Performance characteristic graph for a Graham car supercharger at 3000 engine RPM. | 16th Jun 1934 | Box 126 \ 1 scan0152 | |
| Graph showing the performance characteristics of a Graham Car Supercharger with carburetter but without an air cleaner. | 27th Jun 1934 | Box 126 \ 1 scan0153 | |
| Performance characteristics graph for a Graham Car Supercharger at 3000 engine RPM. | 18th Jun 1934 | Box 126 \ 1 scan0154 | |
| Performance characteristic graph for a Graham car supercharger operating with a carburetter but without an air cleaner. | 18th Jun 1934 | Box 126 \ 1 scan0155 | |
| Letter from Graham-Paige (Belgium) regarding the dispatch of a supercharger. | 27th Jul 1934 | Box 126 \ 1 scan0156 | |
| The valve lift diagrams for the Graham-Paige & Terraplane Six engines. | 27th Jul 1934 | Box 126 \ 1 scan0157 | |
| Letter from Cleverlys Limited regarding the supply and price of a supercharger assembly for a Graham Custom Eight Engine. | 28th Jul 1934 | Box 126 \ 1 scan0158 | |
| Letter to Cleverlys Limited regarding the supply of a supercharger and a car detonation issue. | 30th Jul 1934 | Box 126 \ 1 scan0159 | |
| Letter to the Graham-Paige Corporation regarding a preliminary report on their blower and detonation issues with their car. | 30th Jul 1934 | Box 126 \ 1 scan0160 | |
| Letter from automobile agent Cleverlys Limited concerning the supply of a supercharger assembly and pre-ignition issues. | 31th Jul 1934 | Box 126 \ 1 scan0161 | |
| Letter from Cleverlys Limited regarding the recovery and replacement of a supercharger due to a misunderstanding. | 2nd Aug 1934 | Box 126 \ 1 scan0162 | |
| Letter from Cleverlys Limited requesting the return of a letter from the Graham Factory regarding the setting of a supercharged engine. | 9th Aug 1934 | Box 126 \ 1 scan0163 | |
| Letter to Cleverleys Limited returning papers regarding the setting of the Graham Supercharged Engine. | 24th Aug 1934 | Box 126 \ 1 scan0164 | |
| Letter to Messrs. Cleverlys Limited regarding the return of a later type supercharger which arrived from Antwerp. | 27th Aug 1934 | Box 126 \ 1 scan0165 | |
| Return of a Graham Supercharger and retention of its carburetter. | 30th Aug 1934 | Box 126 \ 1 scan0166 | |
| Despatch of a Graham-Paige Supercharger after examination and testing. | 3rd Sep 1934 | Box 126 \ 1 scan0167 | |
| Order of parts for a Graham 8 engine from Messrs. Cleverley's Ltd. | 15th Sep 1934 | Box 126 \ 1 scan0168 | |
| Test report detailing fuel consumption, speed, and several performance issues on a car named 'Graham'. | 1st Oct 1934 | Box 126 \ 1 scan0169 | |
| Confirming a conversation and requesting an urgent order for a Cylinder Head Gasket and an Instruction Book. | 26th Oct 1934 | Box 126 \ 1 scan0170 | |
| Letter to Graham-Paige Motors Corp. detailing performance issues with a supercharger, engine components, and cold starting. | 13th Nov 1934 | Box 126 \ 1 scan0171 | |
| Letter discussing the success of a 3-ply nickel gasket on supercharged jobs. | 13th Nov 1934 | Box 126 \ 1 scan0172 | |
| The issues found with a vehicle's engine and chassis after a 10,000-mile test. | 10th Dec 1934 | Box 126 \ 1 scan0173 | |
| Requesting an examination of a Graham Blower after 10,000 miles and an order for new gears. | 12th Dec 1934 | Box 126 \ 1 scan0174 | |
| Request for the speed ignition advance characteristics of the Graham-Paige contact breaker. | 17th Dec 1934 | Box 126 \ 1 scan0175 | |
| Letter to the Graham-Paige Corporation regarding supercharger testing on a 3.5 litre engine. | 20th Dec 1934 | Box 126 \ 1 scan0176 | |
| Letter detailing the results of a 10,000-mile test on a Graham car, focusing on blower gear wear. | 20th Dec 1934 | Box 126 \ 1 scan0177 | |
| The condition and construction of Graham 8 coachwork after 10,000 miles of road testing. | 3rd Jan 1935 | Box 126 \ 1 scan0178 | |
| The construction of body components including centre pillars, doors, and mudguards. | 3rd Jan 1935 | Box 126 \ 1 scan0179 | |
| Technical review of body and chassis components, with comparisons to Bentley and 25 HP models. | 3rd Jan 1935 | Box 126 \ 1 scan0180 | |
| Comparative blueprint of chassis frame cross-sections for Graham-8, RR-25HP, and Bentley models. | 3rd Jan 1935 | Box 126 \ 1 scan0181 | |
| Technical observation and comparison of a Graham chassis frame with Bentley and 25 HP models. | 3rd Jan 1935 | Box 126 \ 1 scan0182 | |
| Conclusions from a vehicle test, noting body rigidity, component weights, and condition after 10,000 miles. | 3rd Jan 1935 | Box 126 \ 1 scan0183 | |
| Weight schedule for a 'Graham' model car, listing individual component weights and the total weight. | 3rd Jan 1935 | Box 126 \ 1 scan0184 | |
| Photographic comparison of the internal mechanisms of a Buick 8 and a Graham 8 car door. | 8th Jan 1935 | Box 126 \ 1 scan0185 | |
| Graham & Coachwork Report regarding an inspection of a dismantled car body by coachbuilders. | 8th Jan 1935 | Box 126 \ 1 scan0186 | |
| Outlining observations made on the Graham-Paige suction operated ignition control. | 10th Jan 1935 | Box 126 \ 1 scan0187 | |
| Graph showing the characteristics of suction and speed-operated ignition control for a Graham-Paige car running at various speeds. | 9th Jul 1935 | Box 126 \ 1 scan0188 | |
| The pressed steel construction of the Graham coachwork and its unsuitability for the required production quantities. | 14th Jan 1935 | Box 126 \ 1 scan0189 | |
| To Mr. Dodd confirming a ventilating window for a Graham 8 has been sent by bag. | 15th Jan 1935 | Box 126 \ 1 scan0190 | |
| Brief internal memo requesting a reply regarding the Graham 8 Coachwork Report. | 15th Jan 1935 | Box 126 \ 1 scan0191 | |
| Acknowledging receipt of a Graham ventilator window and tail lamp glass. | 17th Jan 1935 | Box 126 \ 1 scan0192 | |
| Visit for Mr. Ward to inspect a Graham Body at the Works. | 17th Jan 1935 | Box 126 \ 1 scan0193 | |
| 'Graham & Coachwork Report', requesting notice to prepare a car for an upcoming visit. | 18th Jan 1935 | Box 126 \ 1 scan0194 | |
| Specifications for the Graham Propellor Shaft, including weight, length, and diameter. | 22th Jan 1935 | Box 126 \ 1 scan0195 | |
| Request to monitor oil consumption on a Graham-Paige car to check the effectiveness of an oil seal. | 24th Jan 1935 | Box 126 \ 1 scan0196 | |
| Rear spring particulars and rating curve for a Supercharged Graham vehicle. | 25th Jan 1935 | Box 126 \ 1 scan0197 | |
| Load-deflection graph for Graham rear road springs. | 7th Feb 1935 | Box 126 \ 1 scan0198 | |
| Graham petrol consumption tests comparing fuel efficiency with and without suction ignition advance. | 7th Feb 1935 | Box 126 \ 1 scan0199 | |
| Graph comparing Brake Mean Effective Pressure curves for various Cadillac and Royce products. | 1st Aug 1933 | Box 126 \ 1 scan0200 | |
| Oil consumption test report for a Graham 8 car. | 22th Feb 1935 | Box 126 \ 1 scan0201 | |
| Invoice from Eustace Watkins Ltd for a Supercharger Casting for a Graham Paige Car. | 23th Feb 1935 | Box 126 \ 1 scan0202 | |
| Request to place an order with Eustace Watkins Ltd. for a supercharger casting for a Graham-Paige car. | 23th Feb 1935 | Box 126 \ 1 scan0203 | |
| Comparative table of wheel weights, tyre weights, and ground clearance for Bentley, Buick, Graham, and Essex vehicles. | 14th Mar 1935 | Box 126 \ 1 scan0204 | |
| Urgent internal memo to order a drive coupling for a Graham supercharged saloon. | 7th May 1935 | Box 126 \ 1 scan0205 | |
| Letter from H.M. Bentley & Partners regarding an invoice for previously supplied exhaust systems. | 29th May 1935 | Box 126 \ 1 scan0206 | |
| The running condition and availability of a Graham Paige Car. | 29th May 1935 | Box 126 \ 1 scan0207 | |
| Collection of a Graham-Paige car and the state of its supercharger gears. | 30th May 1935 | Box 126 \ 1 scan0208 | |
| To Roy requesting to pass an order for exhaust systems to Messrs. H.M. Bentley & Partners. | 31th May 1935 | Box 126 \ 1 scan0209 | |
| Arranging the collection of a car and requesting an update on its experimental testing. | 31th May 1935 | Box 126 \ 1 scan0210 | |
| The repair of a Graham-Paige car and the disposal of a Terraplane. | 1st Jun 1935 | Box 126 \ 1 scan0211 | |
| Purchase of a Packard 'One-Twenty' and the status of Graham and Terraplane vehicles for transport work. | 14th Jun 1935 | Box 126 \ 1 scan0212 | |
| Dispatch of a Graham Paige vehicle and requesting an update on a Terraplane. | 18th Jun 1935 | Box 126 \ 1 scan0213 | |
| The order of a petrol tank filler cap from Messrs. Eustace Watkins. | 20th Jun 1935 | Box 126 \ 1 scan0214 | |
| Chassis and body torsion test results for a Graham-Paige car with a steel body. | 9th Oct 1935 | Box 126 \ 1 scan0215 | |
| Request to arrange for a fog lamp to be fitted to a Graham car. | 25th Oct 1935 | Box 126 \ 1 scan0216 | |
| The current status of the Graham Paige car. | 18th Dec 1935 | Box 126 \ 1 scan0217 | |
| Delivery of a Graham-Paige car to Lillie Hall. | 30th Dec 1935 | Box 126 \ 1 scan0218 | |
| Letter of introduction for a tool maker, Mr. Henry Barton, from Graham-Paige Motors Corporation. | 7th May 1937 | Box 126 \ 1 scan0219 | |
| Confirmation of a telegram regarding faulty shock dampers and the inspection of a Humber car. | 18th Oct 1920 | Box 126 \ 2 scan0001 | |
| The weight of a Humber car with a Pullman body, including fluids. | 23th Feb 1921 | Box 126 \ 2 scan0002 | |
| Cracked glass windows on a 15-HP Humber Car during inspection. | 2nd Feb 1921 | Box 126 \ 2 scan0003 | |
| Complaints about a 15-HP Humber car with a Saloon Body and suggesting potential actions. | 3rd Mar 1921 | Box 126 \ 2 scan0004 | |
| Entering the small-car market and comparing competitor models like Buick and Humber. | 3rd Mar 1921 | Box 126 \ 2 scan0005 | |
| Stating an inability to claim for two windows on a 15 HP Humber Car due to the nature of its purchase. | 3rd Mar 1921 | Box 126 \ 2 scan0006 | |
| Acquisition and analysis of a competitor's 15-HP Humber car. | 7th Mar 1921 | Box 126 \ 2 scan0007 | |
| Request to obtain a replacement pinion for a 15.HP Humber car from C.A.V. due to a fault. | 8th Mar 1921 | Box 126 \ 2 scan0008 | |
| Broken Bendix pinion from a 13-HP Humber car starter motor. | 9th Mar 1921 | Box 126 \ 2 scan0009 | |
| With an attached report on the particulars and braking performance of the 15-HP Humber Car. | 15th Mar 1921 | Box 126 \ 2 scan0010 | |
| Specification and performance test results for a 15.9 Horse Power Humber Car. | 10th Dec 1920 | Box 126 \ 2 scan0011 | |
| Technical specifications and performance report covering clutch, brakes, engine timing, suspension and ignition. | 10th Dec 1920 | Box 126 \ 2 scan0012 | |
| Vehicle test report detailing steering characteristics, component specifications, and hill climb performance. | 17th Mar 1921 | Box 126 \ 2 scan0013 | |
| Performance comparison of tyre pumps and slow speeds for various vehicles. | 17th Mar 1921 | Box 126 \ 2 scan0014 | |
| Dynamometer test results for a 15.9 HP Humber Car engine. | 5th Apr 1921 | Box 126 \ 2 scan0015 | |
| Query about the transfer of ownership and registration book for a Humber car purchased for the Experimental Department. | 25th Apr 1921 | Box 126 \ 2 scan0016 | |
| Query about the registration details and the location of the Registration Book for a Humber car. | 28th Apr 1921 | Box 126 \ 2 scan0017 | |
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